Truvative Howitzer bb Q

Truvativ's Howitzer bb is apparently and outboard bearing ISIS bb. My question has to do with whether or not my Holzfeller cranks will work with this bb. My ignorance of compatibility stems from questions in my mind as to whether or not outboard bbs need outboard specific cranks. The cranks I have are pre-Howitzer, so if only newer model cranks will work, then I would guess it's not an option.

Any insights would be greatly appreciated, as would refraining from turning this post into a pro/con ISIS debate. I like my cranks, and the bb I have is fine, just looking to add to my parts box.